Honestly a lot of people would laugh if they saw some really nice tubulars vs really dead simple log manis perform nearly if not equal in the end. Properly designed log style can be just as functional as a tubular from what i gathered locally from the expert race shops but if you'll split hairs then yes the ultimate in flow if both were maximized design wise without considering any fitment issues/constraints (i.e. unrealistic) then a tubular will come out on top.

That is true but saying it like that makes it sound like one has ultimate superiority that matters a lot in the real world and that is what really confuses people out there. Really, the place it'll matter THE most is in the price in the end

That is true but saying it like that makes it sound like one has ultimate superiority that matters a lot in the real world and that is what really confuses people out there. Really, the place it'll matter THE most is in the price in the end

One design does have ultimate superiority the question comes down to the cost and complexity. If a log can do what you need at a lower price point it is more practical. It isn't better though.

Some people may be lumping cast manifolds and "log" manifolds together, indiscriminately. A log uses a common plenum (whether cast or tube construction), which is not as conducive to flow as a manifold that has fully independent runners and a collector (which could also be either cast or tube construction). Looking at these photos of the cp-e setup, I personally wouldn't consider their manifolds a "log" style.

Some people may be lumping cast manifolds and "log" manifolds together, indiscriminately. A log uses a common plenum (whether cast or tube construction), which is not as conducive to flow as a manifold that has fully independent runners and a collector (which could also be either cast or tube construction). Looking at these photos of the cp-e setup, I personally wouldn't consider their manifolds a "log" style.

+1.
When I post pics you will see we did not go log style, but not full tube either. We were able to keep all 3 runners very close to equal length, while also keeping them very short so it offers the space savings of a log style, and benefits of a tubular.

Wow.... they sure looks nice... Tony, you need to drop a few x-mas stage III pics online for everyone to dream about.

Promised some last week. Actually made the post and deleted it before I posted because I wasn't happy with the design as it wasn't finished. I had the fabricator rework them, and it required ordering more Weld Els so we got pushed a week. I should have pics up very soon.

Well being that full-race charges 1,000+ for their 'engineered manifolds' I can take a quick stab at what it has to say about log style manis

Yup And full-race is supposed to offer a kit for our platform sometime next year. So it'll be interesting to compare the two. Those posted articles clearly show solid gains. However, it may not be justifiable at its higher cost.

+1.
When I post pics you will see we did not go log style, but not full tube either. We were able to keep all 3 runners very close to equal length, while also keeping them very short so it offers the space savings of a log style, and benefits of a tubular.

What do you mean by you "did not go full tube either"? In which respect you don't consider your design being "full tube"?

What do you mean by you "did not go full tube either"? In which respect you don't consider your design being "full tube"?

If you take a look at our protype manifold, you will see its not quite a log style yet not the coil of snakes equal length style you see. Take a look at CP-E's manifold offering from last year and you can see exactly what I'm talking about.